Evidence map›Paper›PMID 39422537›Full record

ArticleJournal of radiation research2024

High-throughput, low-cost FLASH: irradiation of Drosophila melanogaster with low-energy X-rays using time structures spanning conventional and ultrahigh dose rates.

Alexander Hart, Jan P Dudzic, Jameson W Clarke, Jonathan Eby, Steve J Perlman, Magdalena Bazalova-Carter

Abstract read
In one paragraph

Article in Journal of radiation research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Deciphering Ultra-High Dose Rate Irradiation withAntioxidants (Basel, Switzerland) · 2026
    Article
  2. Article
  3. Review
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Alexander HartDepartment of Physics and Astronomy, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada.
Jan P DudzicDepartment of Biology, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada.
Jameson W ClarkeDepartment of Biology, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada.
Jonathan EbyInstitute of Biomedical Engineering, University of Toronto, 164 College St. Toronto, Ontario M5S 3E2, Canada.
Steve J PerlmanDepartment of Biology, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada.
Magdalena Bazalova-CarterDepartment of Physics and Astronomy, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada.

Funding

British Columbia Knowledge Development FundCanada Foundation for InnovationCanada Research Chair ProgramNatural Sciences and Engineering Research Council of CanadaNSERC
6 · The paper itself

Abstract

FLASH radiotherapy is an emerging technique in radiation oncology that may improve clinical outcomes by reducing normal tissue toxicities. The physical radiation characteristics needed to induce the radiobiological benefits of FLASH are still an active area of investigation. To determine the dose rate, range of doses and delivery time structure necessary to trigger the FLASH effect, Drosophila melanogaster were exposed to ultrahigh dose rate (UHDR) or conventional radiotherapy dose rate (CONV) 120-kVp X-rays. A conventional X-ray tube outfitted with a shutter system was used to deliver 17- to 44-Gy doses to third-instar D. melanogaster larvae at both UHDR (210 Gy/s) and CONV (0.2-0.4 Gy/s) dose rates. The larvae were then tracked through development to adulthood and scored for eclosion and lifespan. Larvae exposed to UHDR eclosed at higher rates and had longer median survival as adults compared to those treated with CONV at the same doses. Eclosion rates at 24 Gy were 68% higher for the UHDR group (P < 0.05). Median survival from 22 Gy was >22 days for UHDR and 17 days for CONV (P < 0.01). Two normal tissue-sparing effects were observed for D. melanogaster irradiated with UHDR 120-kVp X-rays. The effects appeared only at intermediate doses and may be useful in establishing the dose range over which the benefits of FLASH can be obtained. This work also demonstrates the usefulness of a high-throughput fruit fly model and a low-cost X-ray tube system for radiobiological FLASH research.

Indexed as

Dose-Response Relationship, RadiationDrosophila melanogasterLarvaAnimalsTime FactorsX-RaysDrosophilaFLASHlow-energy X-raysradiobiologyUHDRultrahigh dose-rate radiotherapy

Identifiers

PMID39422537
PMCPMC11629999

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.